Al Waleed began his business career in 1979 after graduating from
Menlo College. He returned to Saudi Arabia, which was in the midst of the 1974–85
oil boom. Operating from a small, four-room cabin in Riyadh and $30,000 start-up money provided by his father, Al Waleed formed Kingdom Establishment in 1980. When that money ran out in a few months, he secured a $300,000 loan from the Saudi American Bank, partly owned by Citibank. Rather than taking a commission for facilitating contracts as the legally required middleman, Al Waleed insisted on a stake in the project. His first success was in 1982, partnering with a South Korean construction company, and from then on, his commissions were used to fund his real estate deals. In his own words, "All the money I used to get from this construction I would plough back into real estate, and in the stock market, both." The hostile
takeover of USCB in 1986, the merger with SCB in 1997, and the merger of USB with SAMBA in 1999, were the first of their kind in the Kingdom. He then secured a majority in
Al-Azizia Panda, merging it with the
Savola Group, and took over National Industrialization Company. In 1993, Al Waleed purchased a 10 percent stake in
Saks Fifth Avenue for $100 million. A
flagship store was then opened in Riyadh. for his satellite TV platform. Then, in 1996, he bought the George V for $185 million, and spent $120 million renovating it for a reopening in Dec 1999. Regarding Al Waleed's investment in the George V,
Issy Sharp states, "...he created value where no one else could..."
Time reported in 1997 that Al Waleed owned about five percent of
News Corporation, which he purchased for $400 million, making him the third largest shareholder. In April 1999, Al Waleed purchased an additional $200 million of preferred shares. In April 1997, Al Waleed purchased a 4 percent stake in
Planet Hollywood for $57 million, and another 16 percent in November 1998 for $45 million. In 2002, Al Waleed formed Kingdom Hotel Investments to oversee his hotel assets. The 2004
Forbes list of wealthiest people had Al Waleed fourth, with a net worth of $21.5 billion. More than $1.3 billion was in hotel holdings. In August 2011, Al Waleed announced that his company had contracted with the
Saudi Binladin Group to build the
world's tallest building, the
Kingdom Tower (at a height of at least ) for
SR 4.6 billion. The original plan—announced in 2008—called it برج الميل (Arabic for "One-Mile Tower"), at a height of and an estimated cost of $20 billion. In December 2011, Al Waleed invested $300 million in Twitter, purchasing secondary shares from insiders. The purchase gave Kingdom Holding "more than 3% share" in the company, which was valued at $8 billion in late summer 2011. In 2015, he announced that he would donate his fortune to charity at an unspecified date. He had previously donated $3.5 billion over the course of 35 years through his charitable organization Alwaleed Philanthropies. From 2015 to 2021, he lost several lawsuits against
Pierre El Daher, CEO of LBCI, and would be required to pay $22m, due to breaches in contract conditions with the Lebanese broadcaster. In May 2022, he was listed as committing to purchase approximately 35 million shares of
Twitter Inc. at or immediately prior to the purchase of Twitter by
Elon Musk and other private-equity investors behind Musk's bid. ==Arrest and release==